what is OBDII
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Northstar Engines and System Technical Discussion Discussion, what is OBDII in Cadillac Engine Technical Discussion; what is OBDII and why cant anyone get a super/turbocharger to go in a cadillac. whats mainly stopping people from ...
  1. #1
    mikeman711's Avatar
    mikeman711 is offline Cadillac Owners Member
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    what is OBDII

    what is OBDII and why cant anyone get a super/turbocharger to go in a cadillac. whats mainly stopping people from doing it

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  3. #2
    mikeman711's Avatar
    mikeman711 is offline Cadillac Owners Member
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    trouble codes

    got to this website for some codes

    http://www.cadillacfaq.com/faq/answers/dtccode.html

  4. #3
    mikeman711's Avatar
    mikeman711 is offline Cadillac Owners Member
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    turbocharger

    no if the cadillac wont let you put in a aturbocharger why did i find these codes
    P0234 - Turbocharger Engine Overboost Condition
    P0235 - Turbocharger Boost Sensor 1 Circuit
    P0236 - Turbocharger Boost System
    P0237 - Turbocharger Boost Sensor Circuit Low Voltage
    P0238 - Turbocharger Boost Sensor Circuit High Voltage
    P0239 - Turbocharger Boost Sensor 2 Circuit
    P0240 - Turbocharger Boost Sensor 2 Performance
    P0241 - Turbocharger Boost Sensor 2 Circuit Low Voltage
    P0242 - Turbocharger Boost Sensor 2 Circuit High Voltage
    P0243 - Turbocharger Wastegate Solenoid 1
    P0244 - Turbocharger Wastegate Solenoid 1 Performance
    P0245 - Turbocharger Wastegate Solenoid 1 Low Voltage
    P0246 - Turbocharger Wastegate Solenoid 1 High Voltage
    P0247 - Turbocharger Wastegate Solenoid 2
    P0248 - Turbocharger Wastegate Solenoid 2 Performance
    P0249 - Turbocharger Wastegate Solenoid 2 Low Voltage
    P0250 - Turbocharger Wastegate Solenoid 2 High Voltage

    i mean what are they for why whould cadillac put thes on if you cant put a turbocharger in

  5. #4
    urbanski is offline Cadillac Owners 10000+ Posts
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    Re: what is OBDII

    merged into 1, your questions can be answered here.

  6. #5
    dkozloski's Avatar
    dkozloski is online now Cadillac Owners 10000+ Posts
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    Re: turbocharger

    Quote Originally Posted by mikeman711 View Post
    no if the cadillac wont let you put in a aturbocharger why did i find these codes
    P0234 - Turbocharger Engine Overboost Condition
    P0235 - Turbocharger Boost Sensor 1 Circuit
    P0236 - Turbocharger Boost System
    P0237 - Turbocharger Boost Sensor Circuit Low Voltage
    P0238 - Turbocharger Boost Sensor Circuit High Voltage
    P0239 - Turbocharger Boost Sensor 2 Circuit
    P0240 - Turbocharger Boost Sensor 2 Performance
    P0241 - Turbocharger Boost Sensor 2 Circuit Low Voltage
    P0242 - Turbocharger Boost Sensor 2 Circuit High Voltage
    P0243 - Turbocharger Wastegate Solenoid 1
    P0244 - Turbocharger Wastegate Solenoid 1 Performance
    P0245 - Turbocharger Wastegate Solenoid 1 Low Voltage
    P0246 - Turbocharger Wastegate Solenoid 1 High Voltage
    P0247 - Turbocharger Wastegate Solenoid 2
    P0248 - Turbocharger Wastegate Solenoid 2 Performance
    P0249 - Turbocharger Wastegate Solenoid 2 Low Voltage
    P0250 - Turbocharger Wastegate Solenoid 2 High Voltage

    i mean what are they for why whould cadillac put thes on if you cant put a turbocharger in
    The list is for all GM cars going back to Buick Regal days.
    Don't mess with Binky Bear!


  7. #6
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
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    Re: what is OBDII

    OBD has been around since the 70's. In 1988 California required that all Automotive manufacturers provide a system which could identify faults in the vehicle's computer control system. This was called OBD I.
    Also in 1988 requirements were set for a second generation of OBD, Designated ODB II. Federal law requires that all the automotive manufactures meet OBD II standards, which went into effect in 1996
    .
    OBD II requires that the on-board computer monitor and actively perform diagnostic test on the vehicle emission systems. The Federal Test Procedure (FTP) set maximum allowable emission levels.
    A Malfunction Indicator Lamp (MIL) must illuminate if a system or a component either fails or deteriorates to the point where the vehicle emissions could rise above 1-1/2 time the FTP standards.
    .
    .
    .
    This has nothing to do with superchargers.
    .
    .
    .
    This has to do with the federal standards.
    If I can set a PCM to say it ran the EVAP test and past, but the car does not have an EVAP system this would be illegal.
    The Manufacturers had to encode the software so it can not be hacked.

    .
    The way I read the law is ANY TUNING OF A PCM FOR STREET USE IS AGAINST A FEDERAL LAW.
    Just adjusting the spark curve would make the program non compliant with the Federal Certification that the PCM's calibration has.

    .
    All the Custom Tuning Software is illegal for street use.
    .
    I have GM federally certified programs and custom tunes

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